{"closeOnBackgroundClick":true,"bindings":{"bind0":{"fn":"function(){$.fnProxy(arguments,\'#headerOverlay\',,\'\');}","type":"quicklookselected","element":".ql-thumbnail .Quicklook .trigger"}},"effectOnShowSpeed":"1200","dragByBody":false,"dragByHandle":true,"effectOnHide":"fade","effectOnShow":"fade","cssSelector":"ql-thumbnail","effectOnHideSpeed":"1200","allowOffScreenOverlay":false,"effectOnShowOptions":"{}","effectOnHideOptions":"{}","widgetClass":"OverlayWidget","captureClicks":true,"onScreenPadding":10}

 1 of 4 
Orion Telescopes
Orion AstroTrack Drive for EQ-1B Equatorial Mount
Accepted Payment
Expected Ship Date: 10/14/2024

  • Cordless DC servo motor and included bracket designed for use with the Orion EQ-1B equatorial mount
  • Economical motor drive provides hands-free celestial tracking for small telescopes attached to the EQ-1B mount
  • Adjustable drive speed control knob allows precise tracking of both solar system and deep-sky objects
  • Ideal for short-exposure piggyback and planetary astrophotography with small telescopes
  • Requires 9V battery (sold separately), which provides approximately 35 hours of motorized operation

Learn more
Item #  21047b

Add motorized tracking convenience to the EQ-1B mount! This cordless, precision DC servo drive allows motorized tracking of objects in space as they appear to migrate across the night sky due to Earth's rotation. This version of the Orion AstroTrack Drive works with telescopes supplied with the EQ-1B equatorial mount. 

The Orion AstroTrack DC Motor Drive provides precise electronic, hands-free tracking of celestial objects as they move across the sky. The AstroTrack Drive counteracts the axial rotation of the Earth, making celestial objects appear to stand still in a telescope's field of view. You won't have to reposition the telescope to re-center an object in the eyepiece as the object moves across the sky - a welcome convenience!

The Orion AstroTrack has variable-speed tracking control, allowing adjustment to the exact sidereal tracking rate as well as to speeds slightly slower or faster than sidereal. This ensures accurate tracking of both solar system and deep-sky objects, and allows for correction of any inherent deviation in the motor from the sidereal rate. The AstroTrack Motor Drive for EQ-1B Mount provides sufficiently accurate tracking for piggyback and short-exposure planetary astrophotography. It is not recommended for prime focus, long-exposure photography.

The Orion AstroTrack Drive for EQ-1B Mount is equipped with an adjustable speed control knob. Adjustable speed has several benefits for nighttime observing of stars, planets, and more. First, it allows you to achieve a precise sidereal tracking speed for your telescope. The term "sidereal" refers to the speed at which most celestial objects appear to move across the sky. When set at a precise sidereal speed, the AstroTrack drive will keep most celestial objects centered in your telescope's field of view so you can enjoy observing the object hands-free for as long as you like, without having to manipulate manual slow-motion controls (a 9-volt alkaline battery provides about 35 hours of operation). Second, the adjustable drive speed allows correction for any inherent deviation from the sidereal rate in the motor itself. Third, you can use the adjustable drive speed to track objects that appear to move at a rate different from sidereal. The Moon, for instance, moves at a slightly slower rate, so the motor speed would be reduced for precise, centered tracking.

Add an Orion AstroTrack Drive to your EQ-1B Mount and start enjoying accurate tracking of celestial objects for more enjoyable observations!


Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.

Product Support
Visit our product support section for instruction manuals and more

Orion AstroTrack Drive for EQ-1 Equatorial Telescope Mount
Bracket for EQ-1B Equatorial Telescope Mount

Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

{"closeOnBackgroundClick":true,"bindings":{"bind1":{"fn":"function(event, startIndex, itemCount, newItems) { QuickLookWidget.assignEvents(newItems); $(\".Quicklook > .trigger\", newItems).bind(\"quicklookselected\", function(event, source, x, y) {\'#_widget1526935056057\', event, source, x, y); }); }","type":"itemsloaded","element":".PagedDataSetFilmstripLoader > .trigger"},"bind0":{"fn":"function(){$.fnProxy(arguments,\'#_widget1526935056057\',,\'\');}","type":"quicklookselected","element":".Quicklook > .trigger"}},"effectOnShowSpeed":"","dragByBody":false,"dragByHandle":true,"effectOnHide":"fade","effectOnShow":"fade","cssSelector":"ql-category","effectOnHideSpeed":"1200","allowOffScreenOverlay":false,"effectOnShowOptions":"{}","effectOnHideOptions":"{}","widgetClass":"OverlayWidget","captureClicks":true,"onScreenPadding":10}